wannacry | 8ff8af7b31fe7ed58b2afc1b556c635c2ccdf20bce7ca371897dea490a8b5027

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13-07-2024 09:29

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General

Target

0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Size

6.4MB
MD5

2f15750b2abd86157c676cd18987c3c9
SHA1

709ac17f0844f0eccd1d2ec5e75ffbd84b29cc74
SHA256

0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4
SHA512

757919fd463a1e3fcb49af9dd3cf1b1d33d144ee34814cb9d0d18cac3ed9a873fcc0825dc4c75748f0f89ebe87c59b03445477e0415c09622e38632d7c5d8c58
SSDEEP

6144:YE9l9yzqIYVTH5DgSg8ajldktM0XXrs2QhMV9qb:YibLgPluxQhMb

Score

10^/10

wannacry defense_evasion discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Executes dropped EXE 3 IoCs

pid	Process
2676	tasksche.exe
2792	tasksche.exe
1040	tasksche.exe

Loads dropped DLL 1 IoCs

pid	Process
2676	tasksche.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2696	icacls.exe
1412	icacls.exe
2824	icacls.exe

File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
defense_evasion

Windows File and Directory Permissions Modification
T1222.001

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A1FDC582-3E84-4527-9FAF-D107657F8D0F}	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A1FDC582-3E84-4527-9FAF-D107657F8D0F}\WpadDecisionReason = "1"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A1FDC582-3E84-4527-9FAF-D107657F8D0F}\WpadNetworkName = "Network 3"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A1FDC582-3E84-4527-9FAF-D107657F8D0F}\7e-3f-54-bb-1c-d0	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-3f-54-bb-1c-d0\WpadDecisionReason = "1"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-3f-54-bb-1c-d0\WpadDecisionTime = d042984607d5da01	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A1FDC582-3E84-4527-9FAF-D107657F8D0F}\WpadDecision = "0"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-3f-54-bb-1c-d0\WpadDecision = "0"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A1FDC582-3E84-4527-9FAF-D107657F8D0F}\WpadDecisionTime = d042984607d5da01	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-3f-54-bb-1c-d0	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2792	tasksche.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2676	2144	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe	31
PID 2144 wrote to memory of 2676	2144	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe	31
PID 2144 wrote to memory of 2676	2144	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe	31
PID 2144 wrote to memory of 2676	2144	0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe	31
PID 2788 wrote to memory of 2792	2788	cmd.exe	33
PID 2788 wrote to memory of 2792	2788	cmd.exe	33
PID 2788 wrote to memory of 2792	2788	cmd.exe	33
PID 2788 wrote to memory of 2792	2788	cmd.exe	33
PID 2792 wrote to memory of 2740	2792	tasksche.exe	34
PID 2792 wrote to memory of 2740	2792	tasksche.exe	34
PID 2792 wrote to memory of 2740	2792	tasksche.exe	34
PID 2792 wrote to memory of 2740	2792	tasksche.exe	34
PID 2792 wrote to memory of 2696	2792	tasksche.exe	35
PID 2792 wrote to memory of 2696	2792	tasksche.exe	35
PID 2792 wrote to memory of 2696	2792	tasksche.exe	35
PID 2792 wrote to memory of 2696	2792	tasksche.exe	35
PID 2676 wrote to memory of 1040	2676	tasksche.exe	39
PID 2676 wrote to memory of 1040	2676	tasksche.exe	39
PID 2676 wrote to memory of 1040	2676	tasksche.exe	39
PID 2676 wrote to memory of 1040	2676	tasksche.exe	39
PID 1040 wrote to memory of 1372	1040	tasksche.exe	40
PID 1040 wrote to memory of 1372	1040	tasksche.exe	40
PID 1040 wrote to memory of 1372	1040	tasksche.exe	40
PID 1040 wrote to memory of 1372	1040	tasksche.exe	40
PID 1040 wrote to memory of 1412	1040	tasksche.exe	41
PID 1040 wrote to memory of 1412	1040	tasksche.exe	41
PID 1040 wrote to memory of 1412	1040	tasksche.exe	41
PID 1040 wrote to memory of 1412	1040	tasksche.exe	41
PID 2676 wrote to memory of 2808	2676	tasksche.exe	44
PID 2676 wrote to memory of 2808	2676	tasksche.exe	44
PID 2676 wrote to memory of 2808	2676	tasksche.exe	44
PID 2676 wrote to memory of 2808	2676	tasksche.exe	44
PID 2676 wrote to memory of 2824	2676	tasksche.exe	45
PID 2676 wrote to memory of 2824	2676	tasksche.exe	45
PID 2676 wrote to memory of 2824	2676	tasksche.exe	45
PID 2676 wrote to memory of 2824	2676	tasksche.exe	45

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2740	attrib.exe
1372	attrib.exe
2808	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
"C:\Users\Admin\AppData\Local\Temp\0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2144
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\ProgramData\qklqlgrzaipqu459\tasksche.exe
    C:\ProgramData\qklqlgrzaipqu459\tasksche.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1040
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      4⤵
      Views/modifies file attributes
      PID:1372
  - - C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      4⤵
      Modifies file permissions
      PID:1412
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - Views/modifies file attributes
    PID:2808
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    PID:2824

C:\Users\Admin\AppData\Local\Temp\0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe
C:\Users\Admin\AppData\Local\Temp\0e767dfa6d7887e832225433ed8866195df94607ccb474868b9abbbf20843ae4.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1140

C:\Windows\system32\cmd.exe
cmd.exe /c "C:\ProgramData\qklqlgrzaipqu459\tasksche.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2788
- C:\ProgramData\qklqlgrzaipqu459\tasksche.exe
  C:\ProgramData\qklqlgrzaipqu459\tasksche.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - Views/modifies file attributes
    PID:2740
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Windows File and Directory Permissions Modification

T1222.001

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a27cfbfad728fa5ec8e701a6f93cab26

SHA1
deba582c9c8f059590132395f987c2acf54e7a7f

SHA256
c0057fd3141966017014beb71fa2e31d84d3ddd2a9f20e3e6ee26df8165a531f

SHA512
8c095ccb3367903bc5498d0222ee537ef2bbd4f4204fe9a9a9babe2426d8a377240a15892e248e6e252bf3b229eecc8b1c960136988bf3398941e20a1e542b5d

Download Submit
memory/1140-1-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/1140-13-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2144-0-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2144-10-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download